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This response is true of prepping and existing finish on furniture, but kitchen cabinets are more problematic because they are work areas where grease, steam, food splatters and oil from hands are common. Prep is basically degreasing and abrading the surface for better adhesion. Oil or substances on hands really show up on a failed re-finish around doorknobs and hands if the surface is not cleaned thoroughly.

Vinyl or paper veneers can be often found on the end returns of lower price-point cabinets. We cannot guarantee that our paints will adhere well to a paper veneer - we have no idea what the actual material is or what adhesives were used to apply the veneer to the surface. The resins and additives in our paints may break down the adhesives used for the veneer.

And Milk Paint does NOT adhere to vinyl.

Brushable White Enamel can be applied to raw wood or existing finishes. When applying over an existing finish, be sure to prep your surface properly.

Learn how to properly prep existing finishes by watching this video.

There is no easy solution to this problem. General Finishes Milk Paint has strong adhesion properties but there are several reasons this finish could fail:

Although some companies promote their products as "no prep", that is nonsense. If you skip this step the finish can fail.

General Finishes standard for a good finish is it must adhere well and stand the test of time. 

1. PREP CLEANING:

Cleaning an existing finish removes dirt, grime and many common contaminants such as oil from hands. Dirt, grime, and oil prevent good adhesion causing the possibility of chipping, peeling and flaking - all signs of a failed finish.

Although some companies promote their products as "no prep," that is nonsense. If you skip this step the finish can fail. General Finishes's standard for a good finish is it must adhere well and stand the test of time.

The most critical part of finishing a piece of furniture happens before you open a can of stain or paint - it starts with the sanding. Sanding is critical to creating a smooth surface. Use the following sanding sequences for new wood:

PAINT

For wood that is going to be painted, use 120-grit, followed by 150-grit.

There are several reasons:

1. The cabinets were not prep cleaned and sanded properly. Sanding and cleaning are an essential part of any refinishing process.

In most cases, you can use a 220 sanding pad to scuff the surface and clean with a 50|50 mix of water and denatured alcohol.